Weather in North Glen Ellyn, IL
North Glen Ellyn, Sunday, 9 August, 06:24
Clear. Feels like 65°. High 84°, low 63°.
Monthly outlook for North Glen Ellyn, IL: average high 83.4°, average low 68.4°. That is 2° above the climate normal for August. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 23 August (93.5°), the coolest 14 August (62°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.8° | 79.9° | +0.5° |
| 19 August – 28 August | 87.9° | 79.9° | +4.4° |
| 29 August – 7 September | at normal | 78.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Glendale Heights (2 mi).
0.8
North Glen Ellyn, Monday, 10 August
Rain. High 89°, low 71°.
0.06North Glen Ellyn, Tuesday, 11 August
Light rain. High 80°, low 69°.
0.03North Glen Ellyn, Wednesday, 12 August
Light rain. High 85°, low 69°.
0
North Glen Ellyn, Thursday, 13 August
Overcast. High 77°, low 67°.
0North Glen Ellyn, Friday, 14 August
Overcast. High 76°, low 62°.
0North Glen Ellyn, Saturday, 15 August
Overcast. High 79°, low 65°.
0.01North Glen Ellyn, Sunday, 16 August
Light rain. High 76°, low 66°.
0.02North Glen Ellyn, Monday, 17 August
Light rain. High 83°, low 66°.
0North Glen Ellyn, Tuesday, 18 August
Overcast. High 79°, low 67°.
0.11North Glen Ellyn, Wednesday, 19 August
Light rain. High 85°, low 68°.
0North Glen Ellyn, Thursday, 20 August
Overcast. High 84°, low 75°.
0North Glen Ellyn, Friday, 21 August
Clear. High 87°, low 74°.
0North Glen Ellyn, Saturday, 22 August
Clear. High 92°, low 70°.
0.02North Glen Ellyn, Sunday, 23 August
Light rain. High 94°, low 72°.
0.04North Glen Ellyn, Monday, 24 August
Light rain. High 85°, low 70°.
0.07
North Glen Ellyn, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15North Glen Ellyn, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11North Glen Ellyn, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13
North Glen Ellyn, Friday, 28 August
Climate normal for this date — 60-year average.
0.11North Glen Ellyn, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13North Glen Ellyn, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08
North Glen Ellyn, Monday, 31 August
Climate normal for this date — 60-year average.
0.12North Glen Ellyn, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04North Glen Ellyn, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09North Glen Ellyn, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09North Glen Ellyn, Friday, 4 September
Climate normal for this date — 60-year average.
0.08North Glen Ellyn, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11North Glen Ellyn, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09North Glen Ellyn, Monday, 7 September
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for North Glen Ellyn, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in North Glen Ellyn, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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